The couple had a shocking row recently, and it's gratifying that they haven't made up without us seeing. In fact, Owen's completely closing Cristina out - even when a florist's van drives into the hospital and he dives to save her, he just checks she's okay and walks off.

But there's hope - at the end of the episode, Cristina finds her husband in the engine room and begs him not to hate her, and they touch each other's arms. I've loved this storyline. Grey's hasn't been shy about one of the most difficult compromises a relationship could face, and I'm sure there's more trouble ahead.

While we're talking about Owen, the highlight of the episode had to be when Owen asked Teddy if they could get a drink and talk. But Teddy's still furious with him about the Henry situation and spits that she hates him, and wishes he was dead instead of Henry; hell, instead of the soldiers in Iraq he served with.

It's an absolutely stunning scene - you hardly ever see that genuine hatred on screen, and Kim Raver does a fantastic job of playing Teddy's raw fury ("this is not grief, it will not pass, I hate you"). I wouldn't be surprised if it was grief, but that's understandable - Owen's shellshocked face is pretty much how the viewers feel. Fantastic.

The other part of the episode that hinted at development in the future came with Lexie. She's treating a man who's been in a car crash... and coping with his awful girlfriend who can only whine about how he gave her a necklace instead of an engagement ring. I really struggled to have any sympathy with this woman.

Perhaps I should have - especially as she has a change of heart when she realizes how sick he is. But really, ugh. The poor man eventually dies, and while Lexie's tidying up his belongings, she discovers the necklace he'd given his girlfriend. It's a locket - with the words: "Will you marry me?" inside.

After losing rock, paper, scissors to Arizona, Mark's on babysitting duty - and Julia's in surgery anyway. So Lexie, deciding she can't leave it too late, goes over to his apartment to tell him she loves him (amazing!) But Jackson's there to keep Mark company. Obviously, Lexie can't tell Mark she loves him in front of her other ex, but I wouldn't be surprised if there's more to come there.

There's also a sad moment for Webber, who's still struggling to cope with Adele's illness. He's excited about celebrating their anniversary, only to discover when he goes home that she doesn't recognize him. "My wife's not mad right now," he tells Bailey, who's surprised to see him at the hospital. "In fact, I think she's falling in love with me." It's so touching and sad.

Otherwise, it's pretty happy all round for our Valentine's Day couples. Meredith and Derek seem to have resolved their problems and find some "quality time" away from Zola. And Arizona's thrilled when her evening with Callie - which she was worried could be camping - turns out to be a night in Derek's beautifully decked-out trailer.

And there was a lovely moment for Bailey, who's determined not to miss her date with Ben that evening. Unfortunately, she ends up in surgery until late and worries she's ruined Valentine's Day. But Ben knows what Bailey's like and has decked out the cafeteria with fairy lights and a waiter. It's really sweet, especially considering Bailey's past.

So, that was about it. It was an entertaining episode - complete with lovestruck kids - but didn't really give us any plot points to sink our teeth into. Whether that's a problem or whether you were satisfied to sit back and relax with a romantic little episode is up to you...

Medical Notes

Cristina's back on Teddy's service. This is a Good Thing.

I hate Grey's Anatomy for manipulating me so skilfully (with children), but I cannot deny that Nico's letter to Clem was adorable. You can slap me now.

Loved the hilariously awkward moment when some fool asked Teddy, Cristina and Owen if they had any Valentine's Day plans.

Rock, paper, scissors to decide who has to babysit. Tic tac toe in the OR. What's next - hangman in the morgue? (Anyway, Jackson and Mark's team talk was fun.)

"I can't do it in front of the duckies."

"I can babysit tonight if you need some time. I have no plans. My life is empty. Alone. No plans whatsoever. At all." "Great!"

"I need to have sex with my wife. Apparently in woods on cold, hard ground." Arizona was good fun, though just a little bit whiney.

Jackson's behind on studying for the boards. I can't imagine this won't come up again, though he did ask Mark for help.

"Valentraumas"? Really, April?

Bailey and Meredith were thrilled that they got their patients' tumour and cured her. Great. But there wasn't even a tiny bit of sadness about the fact that she now has no ovaries. I know she needed them out, but they were practically punching the air...

Funniest bit of the episode: "Are you hitting the town?" "No, I'm not hitting much of anything these days." Naughty Lexie.

I also enjoyed the bit when Webber accidentally used the word "fiancé". Oops.

"I'd mock you right now if my mouth wasn't so full."

Bailey running away when Webber agreed to take over her surgery was cute.